Concrete insert



Patented ll/lan 5, ll

entran s ear tresses',

er rrr 'CONCRETE INSERT.

Application filed July 25,

This invention relates to concrete inserts, and its general object is to Yprovide an insert adapted to be iixedly en'ibedded in concrete and the like Stor the reception et bolts and the like in a manner whereby a bolt or the like can be secured therein or removed therefrom with very little eiiort.

A further object ot the invention is to provide an insert t'or concrete work that. is in the nature of a housing adapted to receive bolts and the like of various sizes, the parts of the insert beine' interchangeable for Athat purpose before and after the insert is iixed in the concrete.`

Another object ot' the invention is to provide a concrete insert that can be set and lixed in any desired position lbefore the concrete is poured thereabout, and be retained in that position after the concrete sets.

This invention also consists in certain other features orp construction and in the conibination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specilically pointed out in the appended claims.

in describing my invention in detail, reterence will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure l is a sectional view taken approximately on line 1-1 o1- Figure 2 and illustrates one form of my invention with the same embedded in a ceiling.

Figure 2 is a sectional'view taken approximately on line 2 2 of Figure l.v

Figure 3 is a bottom plan view .of the insert as lshown in Figures 1 and 2.

Figure 4 isa sectional view taken on line lof Figure 1.

Figure 5 is a detail view of one of the plates used in this form of the invention.

Figure 6 is a sectional view taken through a sliofhtly modified form. Figure 7 is a perspective view showing a fragmentary portion of one ot thesections and the recess for providing the weakened portion ot' said housing.

Referring to the drawings in detail the letter A indicates concrete which is adapted to yreceive my insert in the manner as best shown in Figures 1 and 2 of the drawings, and in the form of the invention as shown in Figures 1 t-o 5 inclusive, the reference numeral l indicates a housing which is of a receptacle type and includes inclined side walls vided with bearing 1927, Serial No 208,352.

2 and 3, connected at their ends with an inner wall l andan outer wall 5.` The housing' 1s formed by a pair of sections which are identical in construction and have extendmg from their side walls apertured ears 5 aeapt- 'before pouring the concrete thereabout as will be apparent.

Extending from the inner wall 4 are Jee-tions 12 which have formed on their outer ends strips 13 and these strips and projections 12 are substantially reinforced by ribs lll asbest shown in Figures 1 and 2 of the drawings. The of are adapted to strengthen the construction and to firmly hold the same in the concrete.

Disposed in the, forward corners within the housinfT are extensions 15 arranged in parallel cooperating pairsand which are probores 16 to receive trunnions 17 formed on one of the ends of plates 18 which by this construction are mounted for pivotalmovement in the housing and are providedv with semi-circular recesses19, in

are recessed `asiat 1-1 for the pro- Y arojections and strips-theref Gil seV

their :tree ends so that said plates cooperateV Y for securing the headed end of a bolt or the o.

like in the housing as will beapparent.

The outer wall 5 of the housing is substantially thicker than the remaining walls thereof, and this outer wall 5 is provided with an interiorly centrally disposed recess l 2 0 so as to weaken the wall'5 whereby this weaken portion which is indicated by the reference numeral 21 can be removed after the housing is embedded in the concrete so as to allow the reception of headed bolts and the like within the housing as will 'be apparent.

ln Figure G l haveillustrated a slightly modified yform ot the invention and while this form includes the sectional housing as indicated by `the reference numeral 22 together withthe reinforced project-ions and strips for securing the same in concrete, it will be noted that the extensions 15 have not been included therein as in this form of the invention the bolt securing plates are adapted to Vin Figure l, the plates will numeral and have their respectivo side edges provided with recesses which coopern ate to secure a bolt and the like in the housing. v It will be noted that the recesses 2li are relatively smaller than the recesses 25 but in any event the recesses of the saine size are adapted to cooperate as shown in Figure 6, and by this construction bolts of various sizes can be fixed in the housing as the plates will be recessed accordingly. The plates Q3 are loosely mounted in the housing and there fore it can be removed and interchanged as desired.

From the above description and disclosure of the drawings, it will be obvious that I have provided a concrete insert which is adapted to detach-ably receive bolts and the like, and the heads of the holts'are placed in the housing after the weakened portion 21 is removed therefrom and arranged so that the plates 18 or 23 engage the head as shown in Figures l and 6, wnich will ot course prevent the holt from being removed until such removal is desired. lVhen the housing is disosed ina ceiling as shown in Figures l and 2, it will be obvious that the inclined walls 2 and 3 will cause the plates 18 to always remain under the action of gravity and when Ythe bolt as shown at B is placedin the housing and positioned as shown in dottedlines drop by. gravity position as shown in full lines to their normal the head and and thus be disposed between the iront plate It is thought from the ioregoing description that the advantages and novel features of-my invention will be readily apparent.

l desire it Ato be understood that l n make changes in the construction' and in the combination and arrangement of the several formed in the parte, provided that such changes fall within tne scope of the appended claims.

What I claim-is:

l. A concrete insert of the character de-A scribed comprising a housing having a recessed iront wall toprovide a weakened portion adapted to be removed when the housing is set in concrete, recessed plates arranged in said housing and cooperating Jfor detachably securing a bolttherein.

A concrete insert of theV character described comprising a sectional housing,iaper tured ears formed on each section, means arranged in the apertures of said ears for tixin'g the sections together in housing formation, recessed lugs toi-med in said housing projections formed with said housing and cooperating for retaining soid housing in concrete, recessed plates adapted to be arranged in said housing and cooperating for detachably securing a bolt therein extensions 'forward corners of said housing and being provided with bearing bores, and trunnions ormedon one of the ends oit {tjhe plates and being mounted in the bearing ores.

A concrete yinsert of the character described comprising a sectional housing, means lor securing said sections together in housing formation, reinforced projections extending from said housing, an interiorly recessed inner wall included in said housing to provide a centrally disposed weakened portion adapted to kbe removed when said housing is set in concrete and plates pro vider with recesses o't various sizes and being adapted to cooperate for detachably securing a bolt in said housing.

ln testimony whereot1 l affix my signature.

OMER L. DOVNNG. 

